Haemorrhagic syndrome associated with "T. vivax" infections of cattle in Somalia : short communication
3
0
0
Volltext
(2) Acta Tropica 45, 291-292 (1988). :. 1. Department of Biological Sciences, Salford University. Salford M5 4 WT, England National Veterinary Institute, P.O. Box 1703. Uppsala. Sweden Afgooye D. V.O. Afgooye, Somalia. Haemorrhagic syndrome associated with T. vivax infections of cattle in Somalia Short communication. M.F. Dirie1, K.R. Wallbanks1, D.H. Molyneux1, H.A. Omer3. S.. Bornstein2,. Trypanosomiasis, due to T. congolense and 77. vivax, is the main constraint on livestock development in the riverine areas of Somalia. Although in East Africa T. vivax infection usually manifests itself as a chronic form of the disease milder than that caused by T. congolense (Fiennes, 1950; Stephen, 1970). virulent and haemorrhagic forms have been reported from Tanzania (Cornell, 1936) and Kenya (Hudson, 1944; Mwongela et al, 1981; Wellde et al, 1983). We report a haemorrhagic syndrome associated with some T. vivax infections of cattle in Somalia. The syndrome is characterized by the rupture of the anterior capillaries in one or both pinnae of infected cattle. Haemorrhagic spots appear and external Blood loss may be severe in lactating cows and breeding bleeding starts (Fig. bulls which often die if untreated. As blood oozes from their ears cattle shake their heads, splattering heads and flanks with blood (Fig. 1). The syndrome is seen throughout the year, but it is more common during the dry seasons. A localization of the disease in certain areas of high tsetse challenge along the Shabelle River (Jilaal Mooge, Libsoma and Geed-faqe) has been noticed. This syndrome has been seen in all local and exotic breeds of cattle. It is very familiar to the stockowners, and they treat these animals for trypanosomiasis without hesitation. In the cases observed bleeding stopped 25-40 min after the inoculation of the animal with a curative dose of Berenil (Hoechst). No haemorrhages were seen on other parts of the body or in the mucous membranes and the colour of the faeces was normal. The presence of 77. vivax in the blood of the animals with the bleeding syndrome was confirmed by haematological exami1. Correspondence: M. F. Dirie, Department of Biological Sciences, Salford University, Salford M5 4WT, England. 291.
(3) *>:. 7. '. t. ¦. ï. on the pinna and splashs Fig. 1. Head of a bull calf showing extensive haemorrhages neck.. of blood on the. of 5 animals nation of Giemsa stained thin blood films. The parasitaemia examined was 2+ or 3+ by the method of Paris et al. (1982). from Kenya in The syndrome described here differs from that reported and the rapid arrest of the being confined to the ears, in the low parasitaemia and T. vivax zymodeme bleeding following treatment. The physiological changes which cause this syndrome, at present apparently limited to Somalia, remain to be investigated. Services Tanganyika. 1935. p. 14 (1936). Cornell R L ¦ Report of the Department of Veterinary consideration of pathology and immunity. Fiennes R. N. T. W.: The cattle trypanosomiasis: some Ann. trop. Med. Parasit. 44, 42-54(1950). 77 vivax. J. comp. Path. 54. 108-1IV Hudson J. R.: Acute and subacute trypanosomiasis in cattle by. (1944). vivax infection in Dairy cattle in Mwongela G. N.. Kovatch R. M.. Fazil M. A.: Acute Trypanosoma 13, 63-69 (1981). Coast Province. Kenya. Trop. Animal Hlth Prod. evaluation of the parasitology techniques Pans J Murray M., McOdimba F.: A comparative in cattle. Acta trop. (Basel) 39. currently available for the diagnosis of African trypanosomiasis 307-316(1982). in livestock and other domestic Stephen L E Clinical manifestations of the trypanosomiases 774-794. George Allen Unwin animals. In: The African trypanosomiases, ed. by H. W. Mulligan, p. Ltd. London 1970. G. N., Opio E. A.: Haemorrhagic Wellde B T Chumo D. A.. Adoyo M.. Kovatch R. M., Mwongela infection. Trop. Animal Hlth Prod. 15. syndrome in cattle associated with Trypanosoma vivax 95-102(1983). •. 292.
(4)
ÄHNLICHE DOKUMENTE
F I G U R E 1 Smoking status, alcohol consumption, binge drinking and physical activity in women with Turner syndrome (TS, N = 45) compared to women from the Swiss Health
The median number of measurements of total bilirubin levels during the follow-up period was comparable in study partic- ipants with normal (⭐23 mmol/L [1.3 mg/dL]; n p 10
“great socio-economic and gender disparities” and “incompatible and frag- ile economic systems”, where especially the conflicts between the tradition- al and modern economies
The Glass study, Elr. Thrall pointed out, showed that cost-benefit analysis could exclude as well as justify a contemplated project. In this case, Mr. Glass had shown that
As some 17 days elapse between the time the larvae enter the skin or mucosa and the moment they emerge in the stools as eggs or larvae we decided to use the following treatment
The features of the disease were: a parasitemia which appeared to increase exponentially from 23.8 to 243.6 x 106 trypanosomes per ml within the last 24 hours of the disease;
Although the number of animals used for the Cordycepin trial is small 6 sheep in the first two trials, and a repeat with another 6 sheep that gave an identical result with the first
During a sleeping sickness survey of the Musoma District, particularly the Serengeti National Park and its environs, 798 head of cattle in the Ikoma area just outside the park
